Synonyms of PERPETUAL

adjective

1. continuing forever or indefinitely

   • AGELESS8
   • AEONIAN7
   • EONIAN6
   • ETERNAL7
   • EVERLASTING15
   • UNENDING10
   • UNCEASING12

2. uninterrupted in time and indefinitely long continuing

   • CEASELESS11
   • CONSTANT10
   • INCESSANT11
   • UNCEASING12
   • UNREMITTING14

   Also: never-ending.